Chat screen background color - Allows you to change the default white color of your chat screen to any other by selecting from the color palette or through your own custom hexadecimal color code.

Remove advertisements in chat room windows - Removes the ads that are found in Messenger's chat window when you're in a room.

Enable Mic Lock - Adds mic locking/holding support to Messenger and replaces the default "Hands Free" voice option so you can hold the mic down while you're away from the computer even when you're not playing music or talking.

Clear chat screen hotkey - Allows you to set a hotkey for quickly and accessibly clearing your chat screen regardless of whether or not the chat room window is the active window/has focus.

Auto-Ignore Voice "Bots" - When set automatically voice ignores bots that are connected to voice in the room but aren't in the chat room with a chat connection.

Broadcast ignore messages in chat - Sends a chat room message to the room each time you ignore somebody.

Additional Settings

Enable username auto-complete in chat rooms - When typing a user's id or nickname in chat you can automatically complete the rest of their id/nickname by typing out a few characters of their name and pressing the "Tab" key on your keyboard. Name must be the first text entered on the line for auto-completion to work.

Enable Voice Refresh Toolbar Button - Adds a button to the toolbar to refresh your connection to the RTCP server. (Repeated use may cause Messenger to hang and / or crash.)

Allow for Quick Voice Ignoring of Voiced Users - Creates a cross-hair cursor when the mouse is moved over the current user of voice. A double click places that user on Voice Ignore. (Users can optionally be addded to the Global Ignore Bin as well.)

Broadcast LAUNCHcase, WinAmp, iTunes, and Windows Media Player songs in chat - Sends your currently played artist and song names to the room for users to see what you are listening to. (This information can optionally be displayed only locally.)

Anti-Boot | Settings & Security

Enable Alias "Cloaking" - An anti-boot option that can be used to prevent malicious chatters from disconnecting you with most "boots" known and unknown. This option requires that you have at least one alias/profile name on your main Yahoo! account for it to work.

Enable YMSG Protocol Reversion - Forces Yahoo! Messenger to log in using a previous login version of your choosing.

Use TCP for voice instead of UDP - Forces Yahoo! Messenger to make a more reliable voice connection for streaming voice audio data.

Enable Filtering for Yahoo! Messenger-related "crash links" found in e-mails, PMs and web pages - If a "crash link" is invoked through your browser, e-mail client or from Messenger it will cease to operate with the default Yahoo! Messenger "ymsgr:" url handler functionality.

Packet Profiling - A built-in proprietary packet handling system designed by Torseq Technologies for adding in increased protection to Yahoo! Messenger against "boots" and malicious exploits.

YMSG Server Selector - Allows you to select the YMSG server to connect to for your chat session.

Enable Flood Cap Control - Allows YTK Pro to make a Windows networking adjustment providing connection specific traffic-control optimization. (It is recommended that only users with 1Mbps and up utilize the full Flood Cap Control.)

Global Ignore Bin

Add - Adds a username to YTK's global ignore bin.

Remove - Removes a username from YTK's global ignore bin.

Mark Safe - Flags a user as 'safe', removes them from the global ignore bin and adds them to your safe list.

View Profile - Allows you to select a user from your global ignore bin and view their profile.

Settings - Ignore Bin Cleaning/Pruning. Allows you to clean your bin of names that have been on ignore for 1 week, 2 weeks or 1 full month.

Filter Rules - Allows you to create Regular Expression wildcard rules for auto-ignoring users in chat rooms. Options include auto-ignoring based on string patterns found in user's IDs/names, nicknames, location info and user's chat room message content. Wildcards can be applied to string content found at the beginning of each of these fields, anywhere within them or at the end of them.

Export - Allows users to save their Global Ignore Bin entries in a back-up file which may be replaced in future installations of YTK Pro.

Block duplicate chat room messages - Blocks chat room messages sent from users that are identical to their previous message. Sensitivity levels range from low to high where high requires a 100% match to the previous message for the message to be blocked.

Auto-Ignore "Bots" with similar names - Automatically ignores bots in the room with names that are similarly related to each other. Similarity levels range from low to high where high requires nearly a perfect match for similar names.

Auto-Ignore users who flood the chat room - Automatically ignores chat users that attempt to flood the room with messages.

Enable Bounce Bot Protection - Prevents "bounce bots" from flooding your chat screen and causing it to violently jump up and down in attempts to "lag" you or boot you from the room. This option will automatically ignore bots that are found to be bouncing in the chat room.

Automatically ignore chat names which exceed 'x' amount of characters - Automatically ignores chat names that are over a specific length that you can optionally set.

Block ignore message broadcasts sent by other YTK users - Blocks ignore messages sent by other YTK users that have their "Broadcast ignore messages in chat" option turned on.

Block "now playing" winamp song broadcasts sent by other YTK users - Blocks song broadcasts from other YTK users that have their "Broadcast winamp songs in chat" option turned on.

Show the contents of blocked chat room messages in the activity logger - Displays chat messages that were blocked in your activity logger for your review.